105 lines
2.8 KiB
Plaintext
105 lines
2.8 KiB
Plaintext
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ARM Juno r1/r0
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Intro
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=====
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These instructions apply to all models of the ARM Juno:
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- Juno r0 (does not support PCIe)
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- Juno r1 (supports PCIe)
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Buildroot will generate the kernel image, device tree blob and a
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minimal root filesystem.
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How to build it
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===============
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Configure Buildroot
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-------------------
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Configuring Buildroot is pretty simple, just execute:
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$ make arm_juno_defconfig
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Build the rootfs, kernel and DTB
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--------------------------------
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Note: you will need to have access to the network, since Buildroot will
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download the packages' sources.
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You may now build your rootfs with:
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$ make
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(This may take a while)
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Result of the build
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-------------------
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After building, you should obtain this tree:
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output/images/
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+-- rootfs.tar
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+-- juno.dtb (if Juno r0 is used)
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+-- juno-r1.dtb (if Juno r1 is used)
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+-- Image
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Preparing your rootfs
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======================
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Format your pen drive as a ext3 filesystem by executing:
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$ mkfs.ext3 /dev/<your device>
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Installing your rootfs
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======================
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After mounting the pen drive please execute the following:
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$ sudo tar -xvf output/images/rootfs.tar -C <pen drive mount path>
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When completed make sure to unmount the device:
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$ umount <pen drive mount path>
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Insert the pen drive in one of the ARM Juno' USB type A connectors.
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Configure *.dtb in the boot configuration for Juno r0
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=====================================================
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SITE1/HBI0262B/images.txt
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.....
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NOR3UPDATE: AUTO ;Image Update:NONE/AUTO/FORCE
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NOR3ADDRESS: 0x00C00000 ;Image Flash Address
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NOR3FILE: \SOFTWARE\juno.dtb ;Image File Name
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NOR3NAME: board.dtb ;Specify Image name to preserve file extension
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NOR3LOAD: 00000000 ;Image Load Address
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NOR3ENTRY: 00000000 ;Image Entry Point
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......
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Configure *.dtb in the boot configuration for Juno r1
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=====================================================
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SITE1/HBI0262C/images.txt
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......
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NOR3UPDATE: AUTO ;Image Update:NONE/AUTO/FORCE
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NOR3ADDRESS: 0x00C00000 ;Image Flash Address
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NOR3FILE: \SOFTWARE\juno-r1.dtb ;Image File Name
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NOR3NAME: board.dtb ;Specify target filename to preserve file extension
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NOR3LOAD: 00000000 ;Image Load Address
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NOR3ENTRY: 00000000 ;Image Entry Point
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......
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Installing kernel image and DTB
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===============================
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1. Connect to the ARM Juno UART0 and execute USB_ON in the terminal
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2. Connect a USB cable between your PC and ARM Juno USB type B connector
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A mass storage device should appear in your desktop.
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3. Open the software/ folder
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4. Copy the 'Image' file to software/
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5. Copy the 'juno-r1.dtb' (r1) or the 'juno.dtb' (r0) file to software/
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6. Press the red button in the front pannel of ARM Juno
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At this time, the board will erase the Flash entry for each new item and
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replace it with the lastest ones.
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